* {
    margin: 0;
    padding: 0;
}

.top {
    width: 100vw;
    height: 50px;
    background-color: aqua;
}

.left {
    width: 20%;
    height: calc(100% - 50px);
    background-color: #e69137;
    float: left;
    display: flex;
    justify-content: center;
}

.right {
    width: 80%;
    height: calc(100% - 50px);
    float: left;
}

.exit {
    float: right;
    margin-right: 100px;
    line-height: 50px;
}

.left ul, .left li, .left ol {
    list-style: none;
}

.left ol {
    text-indent: 2em;
}